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  1. I

    6.2 MPI Bravo Shifting Engine Cut Out

    Hey All, We have a new to us 2007 Four Winns 260H. When shifting from neutral to forward or reverse the engine will stumble or bug down momentarily when it shifts into gear. It is very similar to when an alpha shift interrupter works. The engine starts and runs fine and it does not do it...
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    Hydraulic steering questions

    Hey all, I am getting ready to setup our 2003 Four Winns 260H with a 6.2LMX and Bravo 3 drive with an internal full hydraulic steering setup. Does anybody know what stops the side to side travel of the Bravo 3? The Mercruiser steering ram has 8” of full travel and the steering arm only...
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    Mercruiser power steering problem

    Hey all, We have a new to us 2003 Four Winns 260H engine 0M621773 and drive 0M149309. When we bought the boat the steering was stiff so I rolled the dice on the steering cable being bad. Replace the cable and the rotary helm and it did not help. It was almost impossible to turn. I pulled...
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    2002 350 MAG MPI IAC Issue

    I am having issues with a Mercruiser 350 MAG MPI, serial #OM254958, that has an IAC that is not responding. Here is the background on it. We bought the boat last year at the end of the season and I noticed that it had an occasional hard starting condition where it would start but idle low...
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    5.7 MPI missing audio warning buzzer

    Hey All, I have a 2002 Four Winns 240H with a 350 Mag MPI engine. We have owned the boat for a year and a half now and it just dawned on me the other day that there has never been an audio warning buzzer sound when I turn the key on. I crawled under the dash and looked all over through the...
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    350 Mag MPI questions

    All, I have a 2002 Four Winns Horizon with a 350 Mag MPI (OM254958) and a Bravo 3 drive. The past couple of times we have been out the engine has been hard to start after its been running. So I did some searching on possible causes to see if I could check a couple items and noticed that some...
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    Mercruiser 5.7 Momentary Engine Cutout

    I have a 1995 Crownline 225BR with a carbureted 350 Mag engine, Thunderbolt V ignition with knock sensor, and an Alpha 1 Gen II drive. I have an occasional situation where the engine will act like the key has been shut off for a split second and then immediately return to running fine. This...
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    Mercruiser 5.7 Momentary Engine Cutout

    I have a 1995 Crownline 225BR with a carbureted 350 Mag engine, Thunderbolt V ignition with knock sensor, and an Alpha 1 Gen II drive. I have an occasional situation where the engine will act like the key has been shut off for a split second and then immediately return to running fine. This...
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    Low alternator ouput at startup?

    I have a 1995 Crownline with 350 Mag and an Alpha drive. The Engine serial number is OF354207. I have been chasing a low voltage/hard start issue since I rebuilt the engine last summer. After I run the blower for 15 sec., the voltage at the key switch will drop from 12.5 to 11.5. When I try...
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    Lower unit gear oil possible aeration?

    I have a 1995 Crownline 225BR with a Mercruiser 350 Mag coupled to an Alpha Gen 2 drive. I noticed after several days of boating that the gear lube in the lower unit reservoir bottle was butterscotch colored. It is Pennzoil brand lower unit gear lube and is golden in color when new. I...
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    Thunderbolt V shop Tach hookup

    I have a 1995 350 Mag with the Thunderbolt V Ignition. I am getting ready to adjust the idle fuel mixture screws after a carb rebuild and want to know the proper way to connect my Shop tach to the coil. I am assuming the red lead goes to the battery and the black lead goes to the negative side...
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    Power steering actuator problem

    I have a 1995 Crownline 225BR with a 350 mag and Alpha Gen II drive. I had incredibly tight steering that I traced down to a bad helm/cable that I have on order. With the cable disconnected I tried moving the outdrive and it wouldn't move. I removed the steering ram to check it and with the...
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    Timing Problem on Thunderbolt V

    Here is the background....Bought a 94 Crownline 225br with a rusted up engine due to the plug being left in it, serial #OF354207. Rebuilt the engine, new fuel pump, and cleaned the carb. Finally got it started after getting the distributor lined up correctly. Brought it up to temp, oil...
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